[wp-hackers] Maximum # of users

[Robin Adrianse]

ID's aren't reused. They're AUTO_INCREMENT, which means that once an ID is
used, it skips ahead. That's why post ID's and etc jump all around if you
delete a post, etc.

If the 2 billion mark is really a problem, you may be able to switch some
stuff in the database around (column types). But 2 billion is about 1/3 of
the world's population... I don't think WP.com is even going to hit that
very soon. Keep in mind that # of blogs != # of users. A lot of users have
more than one blog attached to their username.

On 2/2/07, Angsuman Chakraborty <angsuman at taragana.com> wrote:
>
> > I  really don't think 2 billion is anything we need to worry about for
> now.
>
> I heard that before in an enterprise software startup I was part of (it
> was
> successful and is now part of GE in case you are interested). We hit the 2
> billion mark way sooner than expected because id's were being allocated in
> batches (similiar to ip address problem) and lots of unused id's were left
> in the middle. Anyway the point I am trying to drive home is that
> wordpress.com, rather than any individual blog, may reach the limit
> reasonably soon. Also I don't know if id's are reused, I don't think it
> is.
>
> My two cents...
> Angsuman
> http://blog.taragana.com/
> -----Original Message-----
> From: wp-hackers-bounces at lists.automattic.com
> [mailto:wp-hackers-bounces at lists.automattic.com]On Behalf Of Mark
> Jaquith
> Sent: Wednesday, January 31, 2007 8:44 AM
> To: wp-hackers at lists.automattic.com
> Subject: Re: [wp-hackers] Maximum # of users
> Importance: Low
>
>
> On Jan 30, 2007, at 6:54 PM, Charles Hooper wrote:
>
> > What's the maximum number of users Wordpress intends to support?
> > User IDs in wp_users are stored as BIGINT(20), however while
> > messing about with the caching functions I noticed that get_userdata
> > () casts the supplied ID to an integer, making ~2 billion the
> > maximum number of users possible that Wordpress can handle.
>
> WordPress 2.0.x can't handle much more than 800-1000 users because of
> the way wp-admin/users.php loads them all onto the same page (you run
> out of memory at this point).  2.1 fixes that and it can scale to at
> least 10,000, but I honestly have no idea what the ceiling is now.  I
> really don't think 2 billion is anything we need to worry about for now.
>
> --
> Mark Jaquith
> http://markjaquith.com/
>
> Covered Web Services
> http://covered.be/
>
>
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